<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <table align="center" border="1" cellpadding="20" cellspacing="0" width="500" height="300">
        <tr>
            <td>姓名</td>
            <td>性别</td>
            <td>年龄</td>
        </tr>
        <tr>
            <td>张三</td>
            <td>男</td>
            <td>20</td>
        </tr>
        <tr->
            <td>李四</td>
            <td>男</td>
            <td>22</td>
        </tr->
        <tr>
            <td>小红</td>
            <td>女</td>
            <td>18</td>
        </tr>
    </table>
</body>
</html>